| From e2faeec2de9e2c73958e6ea6065dde1e8cd6f3a2 Mon Sep 17 00:00:00 2001 |
| From: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
| Date: Tue, 30 Aug 2011 20:58:56 -0400 |
| Subject: e1000: Fix driver to be used on PA RISC C8000 workstations |
| |
| From: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
| |
| commit e2faeec2de9e2c73958e6ea6065dde1e8cd6f3a2 upstream. |
| |
| The checksum field in the EEPROM on HPPA is really not a |
| checksum but a signature (0x16d6). So allow 0x16d6 as the |
| matching checksum on HPPA systems. |
| |
| This issue is present on longterm/stable kernels, I have |
| verified that this patch is applicable back to at least |
| 2.6.32.y kernels. |
| |
| v2- changed ifdef to use CONFIG_PARISC instead of __hppa__ |
| |
| CC: Guy Martin <gmsoft@tuxicoman.be> |
| CC: Rolf Eike Beer <eike-kernel@sf-tec.de> |
| CC: Matt Turner <mattst88@gmail.com> |
| Reported-by: Mikulas Patocka <mikulas@artax.kerlin.mff.cuni.cz> |
| Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
| Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| drivers/net/e1000/e1000_hw.c | 6 ++++++ |
| 1 file changed, 6 insertions(+) |
| |
| --- a/drivers/net/e1000/e1000_hw.c |
| +++ b/drivers/net/e1000/e1000_hw.c |
| @@ -3842,6 +3842,12 @@ s32 e1000_validate_eeprom_checksum(struc |
| checksum += eeprom_data; |
| } |
| |
| +#ifdef CONFIG_PARISC |
| + /* This is a signature and not a checksum on HP c8000 */ |
| + if ((hw->subsystem_vendor_id == 0x103C) && (eeprom_data == 0x16d6)) |
| + return E1000_SUCCESS; |
| + |
| +#endif |
| if (checksum == (u16) EEPROM_SUM) |
| return E1000_SUCCESS; |
| else { |
